The trigeminal lemniscus is a fiber tract that conveys information on tactile perception and proprioception of the face via the Trigeminal nerve or, more precisely, its cranial nerve nucleus (nucleus principalis nervi trigemini) to the Nucleus ventralis posteromedialis (VPM) of the Thalamus[^1].
Anatomy
The trigeminal lemniscus joins the Medial lemniscus, which conveys information on the same modalities from all other regions of the body from the Spinal cord to the thalamus. Before reaching the thalamus, the trigeminal lemniscus crosses to the contralateral side, so that information from one half of the face always reaches only the thalamus on the opposite side of the body.